Difference between SLR standby machine and card machine

Digital SLR camera is a kind of digital camera which uses the new technology of single lens reflection. The abbreviation of this new technology is SLR (single lens reflex). This technology is to install a pentaprism above the ground glass in the camera and place it in front of the film plane at an angle of 45. This prism reflects the real image light many times to change the optical path and send the image to the eyepiece, so that the image seen in the observation window is always the same as that on the film, and the observation range is basically the same as the actual shooting range. The unique design of this prism enables the photographer to directly observe the image passing through the lens from the viewfinder. The advantage is that the lens can be replaced and there are many lenses to choose from. The disadvantage is that it is relatively bulky compared with the card machine.

There is no clear concept of card camera in the industry. Only those small shapes, relatively thin bodies and ultra-thin and fashionable designs are the main standards to measure this kind of digital cameras. Its disadvantages are: the manual function is weak, the large LCD screen consumes a lot of power, and the lens performance is poor, so it is generally impossible to replace the lens. Focusing and shooting are slow.

Mainly depends on your personal needs. If you like photography and study hard, I suggest buying a SLR. If you just take a photo as a souvenir, the requirements are not too high. Card machine is more convenient. In terms of price, the cheapest SLR costs more than 4 thousand. Usually one or two thousand images are good.